2 Channel 12V Relay Module

The 2-Channel 12V Relay Module is a dual-channel electromagnetic relay module designed to control two high-voltage or high-current loads using low-voltage control signals from a microcontroller. Operating with a 12 V relay coil, it can switch AC loads up to 250 V and DC loads up to 30 V, depending on the relay specifications. The module includes optocoupler isolation (on most versions), transistor driver circuitry, status LEDs, and flyback protection, ensuring reliable and safe operation. It can be easily interfaced with Arduino, ESP32, STM32, Raspberry Pi, and PIC microcontrollers through digital I/O pins. Due to its robust design and electrical isolation, the 2-Channel 12V Relay Module is widely used in home automation, industrial automation, IoT systems, robotics, motor control, lighting control, security systems, and remote switching applications.